Ch 1 - Systems Development Environment

Question 1

What is a System

Answer 1

Interrelated set of business procedures used in business unit/across units working together for a purpose

Question 2

What are the characteristics of a System?

Answer 2

Subsystems, component, boundary, purpose, environment, interface, constraints, input, output

Question 3

What is Decomposition

Answer 3

Process of breaking down a system into smaller subsystems to allow focus on one area w/o interference to another

Question 4

What is Modularity

Answer 4

Directly resulted from decomposition; process of dividing system into same size modules

Question 5

What is Coupling

Answer 5

Subsystems that are dependent on one another; subsystems should be as independent as possible

Question 6

What is Cohesion

Answer 6

Extent to which a subsystem performs a single function

Question 7

What is SDLC

Answer 7

Systems Development Life Cycle - traditional methodology used to develop, maintain, and replace info systems.

Question 8

Phases of SDLC

Answer 8

1. Systems Planning
2. Systems Analysis
3. System Design
4. Implementation
5. Maintenance

Question 9

Alternatives to SLDC

Answer 9

• Prototyping
• Agile Methodologies
• Scrum
• eXtreme Programming